While literature produced a great number of fairness notions to choose from,
we know different fairness notions to be mutually
exclusive to one another,
making it impossible to satisfy all notions simultaneously [1]}, [2]}, [3]}, [4]}.
Specifically,
the notions from sec:notions above are mutually exclusive
in non-trivial cases.
Hence,
it is valuable to know which fairness metric suits the prediction task most.
